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81 lines
3.8 KiB
81 lines
3.8 KiB
4 months ago
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; RUN: llc %s -o - | FileCheck %s
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; This test case caused UDTs to be discovered during UDT emission, which can
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; cause iterator invalidation.
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; Based on this C++:
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; typedef int a;
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; struct b;
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; class c {
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; c();
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; a b::*d;
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; };
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; c::c() = default;
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; Previously there was an issue were the "a" typedef would be emitted twice.
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; Check that there are only two typedefs, a and c.
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; CHECK: .short 4360 # Record kind: S_UDT
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; CHECK: .long {{.*}} # Type
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; CHECK: .asciz "a"
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; CHECK: .p2align 2
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; CHECK: .short 4360 # Record kind: S_UDT
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; CHECK: .long {{.*}} # Type
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; CHECK: .asciz "c"
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; CHECK: .p2align 2
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; No other S_UDTs.
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; CHECK-NOT: S_UDT
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; CHECK: .cv_filechecksums
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; ModuleID = 't.cpp'
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source_filename = "t.cpp"
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.16.0"
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%class.c = type { { i32, i32, i32 } }
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; Function Attrs: noinline nounwind optnone
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define dso_local %class.c* @"??0c@@AEAA@XZ"(%class.c* returned %this) unnamed_addr #0 align 2 !dbg !7 {
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entry:
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%this.addr = alloca %class.c*, align 8
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store %class.c* %this, %class.c** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %class.c** %this.addr, metadata !20, metadata !DIExpression()), !dbg !22
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%this1 = load %class.c*, %class.c** %this.addr, align 8
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ret %class.c* %this1, !dbg !23
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { noinline nounwind optnone }
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attributes #1 = { nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 11.0.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "<stdin>", directory: "C:/src/llvm-project/build", checksumkind: CSK_MD5, checksum: "4cbca1b19718cc292886f5df0b72cf37")
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!2 = !{}
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!3 = !{i32 2, !"CodeView", i32 1}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 2}
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!6 = !{!"clang version 11.0.0 "}
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!7 = distinct !DISubprogram(name: "c", linkageName: "??0c@@AEAA@XZ", scope: !9, file: !8, line: 7, type: !17, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, declaration: !16, retainedNodes: !2)
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!8 = !DIFile(filename: "t.cpp", directory: "C:/src/llvm-project/build", checksumkind: CSK_MD5, checksum: "4cbca1b19718cc292886f5df0b72cf37")
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!9 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "c", file: !8, line: 3, size: 96, flags: DIFlagTypePassByValue | DIFlagNonTrivial, elements: !10, identifier: ".?AVc@@")
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!10 = !{!11, !16}
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!11 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !9, file: !8, line: 5, baseType: !12, size: 96)
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!12 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !13, size: 96, extraData: !15)
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!13 = !DIDerivedType(tag: DW_TAG_typedef, name: "a", file: !8, line: 1, baseType: !14)
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!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!15 = !DICompositeType(tag: DW_TAG_structure_type, name: "b", file: !8, line: 2, flags: DIFlagFwdDecl | DIFlagNonTrivial, identifier: ".?AUb@@")
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!16 = !DISubprogram(name: "c", scope: !9, file: !8, line: 4, type: !17, scopeLine: 4, flags: DIFlagPrototyped, spFlags: 0)
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!17 = !DISubroutineType(types: !18)
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!18 = !{null, !19}
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!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!20 = !DILocalVariable(name: "this", arg: 1, scope: !7, type: !21, flags: DIFlagArtificial | DIFlagObjectPointer)
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!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64)
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!22 = !DILocation(line: 0, scope: !7)
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!23 = !DILocation(line: 7, scope: !7)
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